Examples and Tests for Sqoop Execution

1) Included examples for both Sqoop Export and Import with Execution
2) Added tests for the examples
3) Added tests for the SqoopExecution trait especially for the failure scenarios
Ok, I'm not confident I know what is going on, but it sounds like if we use the latest version of Parlour we can avoid having to munge the two sql strings together?

Anyway, I think this is the part of the conversation where I leave and let the people who know what they're talking about get on with it. :)